Over the last eight months of war,Hezbollah has increased its deterrence against an Israeli ground invasion of southern Lebanon, primarily through its steady unveiling of an unexpectedly modern arsenal. Previously, the Israel-Lebanon border had maintained an uneasy calm, punctuated by the occasional exchange of rockets into empty areas. The memories of the July 2006 war betweenIsrael and Hezbollah taught the former that it could not occupy southern Lebanon, and the latter that Israel could wreak immense destruction in a short period of time. Not wanting to confrontHezbollah head on, Israel’s e…